20067450 has 96 divisors (see below), whose sum is σ = 55121472. Its totient is φ = 4800000.

The previous prime is 20067433. The next prime is 20067451. The reversal of 20067450 is 5476002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20067450.

It is not an unprimeable number, because it can be changed into a prime (20067451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79825 + ... + 80075.

It is an arithmetic number, because the mean of its divisors is an integer number (574182).

Almost surely, 2^20067450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20067450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27560736).

20067450 is an abundant number, since it is smaller than the sum of its proper divisors (35054022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20067450 is a wasteful number, since it uses less digits than its factorization.

20067450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20067450 is about 4479.6707468295. The cubic root of 20067450 is about 271.7465650464.

The spelling of 20067450 in words is "twenty million, sixty-seven thousand, four hundred fifty".